A decision method for the optimal insertion resistance of a superconducting fault current limiter with reduction of an asymmetric fault current

Title
A decision method for the optimal insertion resistance of a superconducting fault current limiter with reduction of an asymmetric fault current
Author(s)
이상봉김창환김규호[김규호]
Keywords
Electric fault currents; Electric surges; Fault current limiters; Limiters; Superconducting electric lines; DC offsets; Electromagnetic transient program; EMTP; Fault inception angles; Series connections; SFCL; Steady state fault; Superconducting faultcurrent limiters (SFCL); Superconducting fault current limiters
Issue Date
201501
Citation
Transactions of the Korean Institute of Electrical Engineers, v.64, no.1, pp.57 - 63
Abstract
Fault currents characteristics contain decaying DC offset. First cycle peak value of fault currents is higher than steady-state fault current value. These characteristics can affect the operation of protective device. To reduce the asymmetric fault current, the method using a series connection of ftvo hybrid-type Superconducting Fault Current Limiter(SFCL) components, an auxiliary SFCL and a main SFCL, has been proposed. The auxiliary SFCL limits the first half cycle fault current, while main SFCL limits the steady state fault currents. This paper proposed a decision method of the optimal insertion resistance of auxiliary and main SFCL components. To verify the effectiveness of proposed scheme, the various simulations are performed by using Electromagnetic Transient Program(EMTP). Copyright ? The Korean Institute of Electrical Engineers.
URI
http://hdl.handle.net/YU.REPOSITORY/33647http://dx.doi.org/10.5370/KIEE.2015.64.1.057
ISSN
1975-8359
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공과대학 > 전기공학과 > Articles
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